Chables geebtz



(No Model.) A

O. GEERTZP WINDOW SHADE ATTACHMENT.

No. 300,002. PatentedJ une 10, 1004.

Z INVfNTOR WITNESSES ATTORNEYS UNITED STATES PATENT OFFICE.

CHARLESGEERTZ, or BROOKLYN, NEW YORK.

WINDOW-SHADE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 300,062, dated June 10, 1884.

Application filed April 26, 1884.

To all whom it may concern:

Be it known that I, CHARLES GEERTZ, of Brooklyn, Kings county, and State of New York, have invented certain new and useful Improvements in Window Shade Attachments, of which the following is a specification.

This invention has reference to a cheap and simple attachment to window-shades, by which the shade can be readily raised or lowered and retained at any desired position; and the invention consists of a window-shade, a shaderoller, a cord that is attached toa pulley of the roller and t0 the bottom strip of the shade, and of a frictional retaining device for the cord, which consists of a diametrically-perforated cylindrical or spherical block attached to the window-casing, through the perforations of which the shade-cord is passed.

In the accompanying drawings, Figure 1 represents a front elevation of a shade-roller with my improved attachment; and Figs. 2 and 3 are a detail side view and a detail horizontal section on line a: :10, Fig. 2, of the friction device for the shadecord.

Similar letters of reference indicate corre sponding parts.

A in the drawings represents a windowshade, and B ashade-roller, which is supported in the usual manner in brackets of the window-casing, and provided at one side with a pulley, b, to which one end of the shade-cord C is attached, said shade-cord being wound upon the pulley b when the shade is lowered, and unwound therefrom when the shade is raised. The opposite end of the shade-cord O is attached in a suitable manner to the transverse bottom strip, a, of the shade. The shadecord 0 is passed through a friction device, D, which is screwed or otherwise attached at any suitable point of the window casing. The friction device D is made of a solid or hollow piece of wood or other suitable material, and

(No model.)

of cylindrical, spherical, or other shape, and provided with diametrical holes d d, which are arranged alternately at right angles to each other, so that the cord 0, in passing through from one hole to the next hole, extends spirally around the outer surface of the friction device. weight of the shade, the cord is passed through two or more holes of the friction-block D, whereby the friction is increased in proportion to the weight of the shade. In this manner the shade can be raised or lowered with great facility and retained at any desired point, the friction-stop forming a cheap, simple, and reliable attachment to the shaderoller and shade.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination of the shade A, shade roller B, having a pulley, b, shade-cord G, attached to the pulley and to the bottom strip, a, of the shade, and a perforated friction device, D, through the holes of which the shadecord is passed, substantially as set forth.

2. A friction device for the cords of window-shades, composed of a block of suitable shape, having diametrical perforations extending alternately in different directions through the block, substantially as set forth.

3. A friction device for the cords of window-shades, formed of a cylindrical or spherical block, having diametrical openings arranged alternately at right angles to each other, and end openings for attaching it to the window-casing, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

CHARLES GEERTZ.

Witnesses:

PAUL GOEPEL, SIDNEY MANN.

According to the size and 

